Home / 168,122,705.75-252,256,893.41-90,308,821.60

Finding the Fourth Proportional to 168,122,705.75, 252,256,893.41 and 90,308,821.60

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Solution

The fourth proportional to 168,122,705.75, 252,256,893.41 and 90,308,821.60 is: 135,502,356.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,122,705.75 : 252,256,893.41 = 90,308,821.60 : x
  2. Step 2: Convert to fraction form
    168,122,705.75/252,256,893.41 = 90,308,821.60/x
  3. Step 3: Cross multiply
    168,122,705.75x = 252,256,893.41 × 90,308,821.60
  4. Step 4: Simplify right side
    168,122,705.75x = 22,781,022,783,112,340
  5. Step 5: Solve for x
    x = 22,781,022,783,112,340/168,122,705.75
  6. Step 6: Final answer
    x = 135,502,356.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.